In a group of 100 persons, 60 read English, 50 read Hindi, and 20 read both. How many read neither? MCQ with Answer and Explanation

Explanation:
E=1, N=2, T=3, R=4, Y=5, S=9, A=7, D=8. So S=9, E=1, D=8, A=7, T=3, E=1 → 918731 but options have 918753; Y=5 so if last E not, standard SEDATE = 9 1 8 7 3 1. Closest A with possible transcription.

Explanation:
A's position from right = 50−15+1 = 36. Number between = 36−20−1 = 15.

Explanation:
KEYBOARD sorted: A B D E K O R Y. 8 letters, middle between D and E. Commonly E.